What is unchained and why do you want an account with them?
Discussion
They do Bitcoin backed loans. So you could use your Bitcoin as collateral to get a loan and not have to sell your Bitcoin. Which works out heavily in your favor if the price rises.
They're a Bitcoin company kind of like River. They offer multisig custody but you keep control (you have two keys and they hold one). They also do retirement accounts, buy and sell corn and they recently stopped doing their loan product.